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AISI 310HCb Stainless Steel vs. S82121 Stainless Steel

Both AISI 310HCb stainless steel and S82121 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 79% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is AISI 310HCb stainless steel and the bottom bar is S82121 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
250
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 46
28
Fatigue Strength, MPa 210
370
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 78
78
Shear Strength, MPa 410
470
Tensile Strength: Ultimate (UTS), MPa 590
730
Tensile Strength: Yield (Proof), MPa 230
510

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 520
430
Maximum Temperature: Mechanical, °C 1100
1020
Melting Completion (Liquidus), °C 1410
1430
Melting Onset (Solidus), °C 1370
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 28
14
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 4.8
2.8
Embodied Energy, MJ/kg 69
40
Embodied Water, L/kg 190
150

Common Calculations

PREN (Pitting Resistance) 25
28
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
180
Resilience: Unit (Modulus of Resilience), kJ/m3 130
660
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
26
Strength to Weight: Bending, points 20
23
Thermal Diffusivity, mm2/s 3.9
4.0
Thermal Shock Resistance, points 13
20

Alloy Composition

Carbon (C), % 0.040 to 0.1
0 to 0.035
Chromium (Cr), % 24 to 26
21 to 23
Copper (Cu), % 0
0.2 to 1.2
Iron (Fe), % 48 to 57
66.7 to 75.4
Manganese (Mn), % 0 to 2.0
1.0 to 2.5
Molybdenum (Mo), % 0
0.3 to 1.3
Nickel (Ni), % 19 to 22
2.0 to 4.0
Niobium (Nb), % 0 to 1.1
0
Nitrogen (N), % 0
0.15 to 0.25
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 0.75
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.010